Answer:

Step-by-step explanation:
An arc measure of 20 degrees corresponds to a central angle of 20 degrees.
Area of sector of circle

where n = central angle of circle, and r = radius



$18. You get this because you subtract 7 from 16 since that’s money he got. You get 9. Since Jack spent half his allowance money, you double the money he had left after spending it, giving you $18.
Answer:
.
Step-by-step explanation:
We have been given a geometric sequence 18,12,8,16/3,.. We are asked to find the common ratio of given geometric sequence.
We can find common ratio of geometric sequence by dividing any number by its previous number in the sequence.

Let us use two consecutive numbers of our sequence in above formula.
will be 12 and
will be 18 for our given sequence.

Dividing our numerator and denominator by 6 we will get,

Let us use numbers 8 and 16/3 in above formula.



Therefore, we get
as common ratio of our given geometric sequence.